mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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220 lines
14 KiB
C++
220 lines
14 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <exosphere.hpp>
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#include "warmboot_clkrst.hpp"
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#include "warmboot_util.hpp"
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namespace ams::warmboot {
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namespace {
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constexpr inline const uintptr_t APB_MISC = secmon::MemoryRegionPhysicalDeviceApbMisc.GetAddress();
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constexpr inline const uintptr_t CLKRST = secmon::MemoryRegionPhysicalDeviceClkRst.GetAddress();
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constexpr inline const uintptr_t FLOW_CTLR = secmon::MemoryRegionPhysicalDeviceFlowController.GetAddress();
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constexpr inline const uintptr_t GPIO = secmon::MemoryRegionPhysicalDeviceGpio.GetAddress();
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constexpr inline const uintptr_t MSELECT = MSELECT(0);
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constexpr inline const uintptr_t PMC = secmon::MemoryRegionPhysicalDevicePmc.GetAddress();
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constexpr inline const uintptr_t SYSTEM = secmon::MemoryRegionPhysicalDeviceSystem.GetAddress();
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ALWAYS_INLINE void EnableClusterPartition(const reg::BitsValue value, APBDEV_PMC_PWRGATE_TOGGLE_PARTID part_id) {
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/* Toggle the partitions if necessary. */
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if (!reg::HasValue(PMC + APBDEV_PMC_PWRGATE_STATUS, value)) {
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reg::Write(PMC + APBDEV_PMC_PWRGATE_TOGGLE, PMC_REG_BITS_ENUM (PWRGATE_TOGGLE_START, ENABLE),
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PMC_REG_BITS_VALUE(PWRGATE_TOGGLE_PARTID, part_id));
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}
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/* Wait for the toggle to complete. */
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while (!reg::HasValue(PMC + APBDEV_PMC_PWRGATE_STATUS, value)) { /* ... */ }
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/* Remove clamping. */
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reg::Write(PMC + APBDEV_PMC_REMOVE_CLAMPING_CMD, value);
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/* Wait for clamping to be removed. */
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while (reg::HasValue(PMC + APBDEV_PMC_CLAMP_STATUS, value)) { /* ... */ }
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}
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}
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void InitializeCpuCluster() {
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/* Set CoreSight reset. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_RST_DEV_U_SET, CLK_RST_REG_BITS_ENUM(RST_DEV_U_SET_SET_CSITE_RST, ENABLE));
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/* Restore PROD setting to CPU_SOFTRST_CTRL2 by clearing CAR2PMC_CPU_ACK_WIDTH. */
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reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_CPU_SOFTRST_CTRL2, CLK_RST_REG_BITS_VALUE(CPU_SOFTRST_CTRL2_CAR2PMC_CPU_ACK_WIDTH, 0));
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/* Restore the CPU reset vector from PMC scratch. */
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reg::Write(SYSTEM + SB_AA64_RESET_LOW, reg::Read(PMC + APBDEV_PMC_SECURE_SCRATCH34) | 1);
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reg::Write(SYSTEM + SB_AA64_RESET_HIGH, reg::Read(PMC + APBDEV_PMC_SECURE_SCRATCH35));
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/* Configure SUPER_CCLKG_DIVIDER. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_SUPER_CCLKG_DIVIDER, CLK_RST_REG_BITS_ENUM (SUPER_CCLKG_DIVIDER_SUPER_CDIV_ENB, ENABLE),
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CLK_RST_REG_BITS_ENUM (SUPER_CCLK_DIVIDER_SUPER_CDIV_DIS_FROM_COP_FIQ, NO_IMPACT),
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CLK_RST_REG_BITS_ENUM (SUPER_CCLK_DIVIDER_SUPER_CDIV_DIS_FROM_CPU_FIQ, NO_IMPACT),
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CLK_RST_REG_BITS_ENUM (SUPER_CCLK_DIVIDER_SUPER_CDIV_DIS_FROM_COP_IRQ, NO_IMPACT),
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CLK_RST_REG_BITS_ENUM (SUPER_CCLK_DIVIDER_SUPER_CDIV_DIS_FROM_CPU_IRQ, NO_IMPACT),
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CLK_RST_REG_BITS_VALUE(SUPER_CCLK_DIVIDER_SUPER_CDIV_DIVIDEND, 0),
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CLK_RST_REG_BITS_VALUE(SUPER_CCLK_DIVIDER_SUPER_CDIV_DIVISOR, 0));
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/* Configure SUPER_CCLKLP_DIVIDER. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_SUPER_CCLKLP_DIVIDER, CLK_RST_REG_BITS_ENUM (SUPER_CCLKLP_DIVIDER_SUPER_CDIV_ENB, ENABLE),
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CLK_RST_REG_BITS_ENUM (SUPER_CCLK_DIVIDER_SUPER_CDIV_DIS_FROM_COP_FIQ, NO_IMPACT),
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CLK_RST_REG_BITS_ENUM (SUPER_CCLK_DIVIDER_SUPER_CDIV_DIS_FROM_CPU_FIQ, NO_IMPACT),
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CLK_RST_REG_BITS_ENUM (SUPER_CCLK_DIVIDER_SUPER_CDIV_DIS_FROM_COP_IRQ, NO_IMPACT),
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CLK_RST_REG_BITS_ENUM (SUPER_CCLK_DIVIDER_SUPER_CDIV_DIS_FROM_CPU_IRQ, NO_IMPACT),
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CLK_RST_REG_BITS_VALUE(SUPER_CCLK_DIVIDER_SUPER_CDIV_DIVIDEND, 0),
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CLK_RST_REG_BITS_VALUE(SUPER_CCLK_DIVIDER_SUPER_CDIV_DIVISOR, 0));
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/* Enable CoreSight clock. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_U_SET, CLK_RST_REG_BITS_ENUM(CLK_ENB_U_SET_SET_CLK_ENB_CSITE, ENABLE));
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/* Clear CoreSight reset. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_RST_DEV_U_CLR, CLK_RST_REG_BITS_ENUM(RST_DEV_U_CLR_CLR_CSITE_RST, ENABLE));
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/* Select MSELECT clock source as PLLP_OUT0 with divider of 4. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_SOURCE_MSELECT, CLK_RST_REG_BITS_ENUM (CLK_SOURCE_MSELECT_MSELECT_CLK_SRC, PLLP_OUT0),
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CLK_RST_REG_BITS_VALUE(CLK_SOURCE_MSELECT_MSELECT_CLK_DIVISOR, 6));
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/* Enable clock to MSELECT. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_V_SET, CLK_RST_REG_BITS_ENUM(CLK_ENB_V_SET_SET_CLK_ENB_MSELECT, ENABLE));
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/* Wait two microseconds, then take MSELECT out of reset. */
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util::WaitMicroSeconds(2);
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reg::Write(CLKRST + CLK_RST_CONTROLLER_RST_DEV_V_CLR, CLK_RST_REG_BITS_ENUM(RST_DEV_V_CLR_CLR_MSELECT_RST, ENABLE));
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/* Workaround bug by disabling MSELECT error mechanism and enabling WRAP type conversion. */
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reg::ReadWrite(MSELECT + MSELECT_CONFIG, MSELECT_REG_BITS_ENUM(CONFIG_ERR_RESP_EN_SLAVE1, DISABLE),
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MSELECT_REG_BITS_ENUM(CONFIG_ERR_RESP_EN_SLAVE2, DISABLE),
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MSELECT_REG_BITS_ENUM(CONFIG_WRAP_TO_INCR_SLAVE0, ENABLE),
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MSELECT_REG_BITS_ENUM(CONFIG_WRAP_TO_INCR_SLAVE1, ENABLE),
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MSELECT_REG_BITS_ENUM(CONFIG_WRAP_TO_INCR_SLAVE2, ENABLE));
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/* Disable PLLX. */
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reg::ReadWrite(CLKRST + CLK_RST_CONTROLLER_PLLX_BASE, CLK_RST_REG_BITS_ENUM(PLLX_BASE_PLLX_ENABLE, DISABLE));
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/* Clear bit 0 of PMC Scratch 190. */
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reg::ReadWrite(PMC + APBDEV_PMC_SCRATCH190, REG_BITS_VALUE(0, 1, 0));
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/* Clear PMC_DPD_SAMPLE, and wait 10 us for clear to take effect. */
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reg::Write(PMC + APBDEV_PMC_DPD_SAMPLE, 0);
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util::WaitMicroSeconds(10);
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/* Configure UART2_RTS low (GPIO controller 2 G). */
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reg::ReadWrite(GPIO + 0x108, REG_BITS_VALUE(2, 1, 1)); /* GPIO_CNF */
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reg::ReadWrite(GPIO + 0x118, REG_BITS_VALUE(2, 1, 1)); /* GPIO_OE */
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reg::ReadWrite(GPIO + 0x128, REG_BITS_VALUE(2, 1, 0)); /* GPIO_OUT */
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/* Tristate CLDVFS PWN. */
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reg::Write(APB_MISC + PINMUX_AUX_DVFS_PWM, PINMUX_REG_BITS_ENUM(AUX_TRISTATE, TRISTATE),
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PINMUX_REG_BITS_ENUM(AUX_DVFS_PWM_PM, CLDVFS));
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reg::Read(APB_MISC + PINMUX_AUX_DVFS_PWM);
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/* Restore PWR_I2C E_INPUT. */
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reg::Write(APB_MISC + PINMUX_AUX_PWR_I2C_SCL, PINMUX_REG_BITS_ENUM(AUX_E_INPUT, ENABLE));
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reg::Write(APB_MISC + PINMUX_AUX_PWR_I2C_SDA, PINMUX_REG_BITS_ENUM(AUX_E_INPUT, ENABLE));
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/* Enable CLDVFS clock. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_W_SET, CLK_RST_REG_BITS_ENUM(CLK_ENB_W_SET_SET_CLK_ENB_DVFS, ENABLE));
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/* Set CLDVFS clock source/divider. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_SOURCE_DVFS_REF, CLK_RST_REG_BITS_ENUM (CLK_SOURCE_DVFS_REF_DVFS_REF_CLK_SRC, PLLP_OUT0),
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CLK_RST_REG_BITS_VALUE(CLK_SOURCE_DVFS_REF_DVFS_REF_DIVISOR, 14));
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_SOURCE_DVFS_SOC, CLK_RST_REG_BITS_ENUM (CLK_SOURCE_DVFS_SOC_DVFS_SOC_CLK_SRC, PLLP_OUT0),
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CLK_RST_REG_BITS_VALUE(CLK_SOURCE_DVFS_SOC_DVFS_SOC_DIVISOR, 14));
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/* Enable PWR_I2C controller (I2C5). */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_H_SET, CLK_RST_REG_BITS_ENUM(CLK_ENB_H_SET_SET_CLK_ENB_I2C5, ENABLE));
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reg::Write(CLKRST + CLK_RST_CONTROLLER_RST_DEV_H_SET, CLK_RST_REG_BITS_ENUM(RST_DEV_H_SET_SET_I2C5_RST, ENABLE));
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util::WaitMicroSeconds(5);
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_SOURCE_I2C5, CLK_RST_REG_BITS_ENUM (CLK_SOURCE_I2C5_I2C5_CLK_SRC, PLLP_OUT0),
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CLK_RST_REG_BITS_VALUE(CLK_SOURCE_I2C5_I2C5_CLK_DIVISOR, 4));
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reg::Write(CLKRST + CLK_RST_CONTROLLER_RST_DEV_H_CLR, CLK_RST_REG_BITS_ENUM(RST_DEV_H_CLR_CLR_I2C5_RST, ENABLE));
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/* Set the EN bit in pmic regulator. */
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pmic::SetEnBit(fuse::GetRegulator());
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/* Wait 2ms. */
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util::WaitMicroSeconds(2'000);
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/* Enable power to the CRAIL partition. */
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EnableClusterPartition(PMC_REG_BITS_ENUM(PWRGATE_STATUS_CRAIL, ON), APBDEV_PMC_PWRGATE_TOGGLE_PARTID_CRAIL);
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/* Remove software clamp to CRAIL. */
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reg::Write(PMC + APBDEV_PMC_SET_SW_CLAMP, 0);
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reg::Write(PMC + APBDEV_PMC_REMOVE_CLAMPING_CMD, PMC_REG_BITS_ENUM(REMOVE_CLAMPING_COMMAND_CRAIL, ENABLE));
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while (reg::HasValue(PMC + APBDEV_PMC_CLAMP_STATUS, PMC_REG_BITS_ENUM(CLAMP_STATUS_CRAIL, ENABLE))) { /* ... */ }
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/* Spinloop 8 times, to add a little delay. */
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SpinLoop(8);
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/* Disable PWR_I2C controller (I2C5). */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_RST_DEV_H_SET, CLK_RST_REG_BITS_ENUM(RST_DEV_H_SET_SET_I2C5_RST, ENABLE));
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_H_CLR, CLK_RST_REG_BITS_ENUM(CLK_ENB_H_CLR_CLR_CLK_ENB_I2C5, ENABLE));
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/* Disable CLDVFS clock. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_W_CLR, CLK_RST_REG_BITS_ENUM(CLK_ENB_W_CLR_CLR_CLK_ENB_DVFS, ENABLE));
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/* Perform fast cluster RAM repair if needed. */
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if (!reg::HasValue(FLOW_CTLR + FLOW_CTLR_BPMP_CLUSTER_CONTROL, FLOW_REG_BITS_ENUM(BPMP_CLUSTER_CONTROL_ACTIVE_CLUSTER, SLOW))) {
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reg::Write(FLOW_CTLR + FLOW_CTLR_RAM_REPAIR, FLOW_REG_BITS_ENUM(RAM_REPAIR_REQ, ENABLE));
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while (!reg::HasValue(FLOW_CTLR + FLOW_CTLR_RAM_REPAIR, FLOW_REG_BITS_ENUM(RAM_REPAIR_STS, DONE))) {
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/* ... */
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}
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}
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/* Enable power to the non-cpu partition. */
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EnableClusterPartition(PMC_REG_BITS_ENUM(PWRGATE_STATUS_C0NC, ON), APBDEV_PMC_PWRGATE_TOGGLE_PARTID_C0NC);
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/* Enable clock to PLLP_OUT_CPU. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_Y_SET, CLK_RST_REG_BITS_ENUM(CLK_ENB_Y_SET_SET_CLK_ENB_PLLP_OUT_CPU, ENABLE));
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util::WaitMicroSeconds(2);
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/* Enable clock to the cpu complex. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_L_SET, CLK_RST_REG_BITS_ENUM(CLK_ENB_L_SET_SET_CLK_ENB_CPU, ENABLE));
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CLK_ENB_V_SET, CLK_RST_REG_BITS_ENUM(CLK_ENB_V_SET_SET_CLK_ENB_CPUG, ENABLE));
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util::WaitMicroSeconds(10);
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/* Select cpu complex clock source. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CCLKG_BURST_POLICY, CLK_RST_REG_BITS_ENUM(CCLK_BURST_POLICY_CWAKEUP_IDLE_SOURCE, PLLP_OUT0),
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CLK_RST_REG_BITS_ENUM(CCLK_BURST_POLICY_CWAKEUP_RUN_SOURCE, PLLP_OUT0),
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CLK_RST_REG_BITS_ENUM(CCLK_BURST_POLICY_CWAKEUP_IRQ_SOURCE, PLLP_OUT0),
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CLK_RST_REG_BITS_ENUM(CCLK_BURST_POLICY_CWAKEUP_FIQ_SOURCE, PLLP_OUT0),
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CLK_RST_REG_BITS_ENUM(CCLK_BURST_POLICY_CPU_STATE, RUN));
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reg::Write(CLKRST + CLK_RST_CONTROLLER_CCLKLP_BURST_POLICY, CLK_RST_REG_BITS_ENUM(CCLK_BURST_POLICY_CWAKEUP_IDLE_SOURCE, PLLP_OUT0),
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CLK_RST_REG_BITS_ENUM(CCLK_BURST_POLICY_CWAKEUP_RUN_SOURCE, PLLP_OUT0),
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CLK_RST_REG_BITS_ENUM(CCLK_BURST_POLICY_CWAKEUP_IRQ_SOURCE, PLLP_OUT0),
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CLK_RST_REG_BITS_ENUM(CCLK_BURST_POLICY_CWAKEUP_FIQ_SOURCE, PLLP_OUT0),
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CLK_RST_REG_BITS_ENUM(CCLK_BURST_POLICY_CPU_STATE, RUN));
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util::WaitMicroSeconds(10);
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/* Wake non-cpu out of reset. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_RST_CPUG_CMPLX_CLR, CLK_RST_REG_BITS_ENUM(RST_CPUG_CMPLX_CLR_CLR_NONCPURESET, ENABLE));
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}
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void PowerOnCpu() {
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/* Enable power to the CE0 partition. */
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EnableClusterPartition(PMC_REG_BITS_ENUM(PWRGATE_STATUS_CE0, ON), APBDEV_PMC_PWRGATE_TOGGLE_PARTID_CE0);
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/* Clear CPU reset. */
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reg::Write(CLKRST + CLK_RST_CONTROLLER_RST_CPUG_CMPLX_CLR, CLK_RST_REG_BITS_ENUM(RST_CPUG_CMPLX_CLR_CLR_CPURESET0, ENABLE),
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CLK_RST_REG_BITS_ENUM(RST_CPUG_CMPLX_CLR_CLR_CORERESET0, ENABLE));
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}
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}
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